عنوان مقاله [English]
The results of a Prefeasibility study may be the first information of the final project observed by decision makers and investors of large mining companies. Prefeasibility studies have been changed to a real decision point. For these reasons, Prefeasibility studies should be prepared carefully by experienced people and their results should be eligible. The shale is some fine grained sedimentary rock consisting mainly of clay or mud. It can be stated, due to conclusions and results of activities carried out for the projects, sampling through various steps including the analysis of major oxides, laboratory baking and volume baking of excavation in the region showed the possibility of production of bricks from reserves in the region. In this regard, the continuation of operations and explanation of services of the exploration project such as the preparation of performed excavations profile with proper and systematic sampling of excavations have shown the results with relative grades and the economic deposit.